Claude Opus 5.5 vs GPT-6 Sol vs GPT-6 Luna: which model to choose after September 22, 2026
On September 22, 2026 Anthropic and OpenAI launched their new models less than two hours apart. Claude Opus 5.5, the first model in the new…
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Insights on AI infrastructure, LLM routing, and enterprise intelligence.
Jev by TypeSafe AI: what the first “System One model” is and why it matters to anyone orchestrating AI agents
Among September’s many launches, the one developers talked about most came from a startup that was almost unknown two weeks ago. On September 15 TypeSafe…
AI News September 2026: a wave of new models, falling prices and Amodei’s call to slow down
September 2026 was one of the busiest months of the year for the language model market. In less than four weeks OpenAI, Anthropic, Google, Meta…
Open Weights vs Closed Models: In 2026 the Price Advantage Has Vanished
For three years the logic was simple: closed models are better, downloadable models are cheaper. In July 2026 that sentence no longer holds. The strongest…
Reasoning Is No Longer the Bottleneck. Calibration Is.
In 2024 the question was “can the model solve the problem?” In 2026 the question has become “does the model know when it cannot?” It…
SWE-bench Is Saturated: How Coding Models Actually Compare Now
For two years SWE-bench Verified was the thermometer for automated software engineering. It no longer is, and the reason is simple: the top three models…
Open Weights vs Closed Models: In 2026 the Price Advantage Has Vanished
For three years the logic was simple: closed models are better, downloadable models are cheaper. In July 2026 that sentence no longer holds. The strongest…
Reasoning Is No Longer the Bottleneck. Calibration Is.
In 2024 the question was “can the model solve the problem?” In 2026 the question has become “does the model know when it cannot?” It…
SWE-bench Is Saturated: How Coding Models Actually Compare Now
For two years SWE-bench Verified was the thermometer for automated software engineering. It no longer is, and the reason is simple: the top three models…
GPT-5.6 Sol is official: OpenAI launches its new generation after the White House gives the green light
After weeks of limited preview access for a small group of selected partners, on July 9, 2026 OpenAI made GPT-5.6 available to everyone — its…